Method for preparing polymer polyol stabilizer using maleic anhydride, and polymer polyol stabilizer prepared thereby
    1.
    发明申请
    Method for preparing polymer polyol stabilizer using maleic anhydride, and polymer polyol stabilizer prepared thereby 有权
    使用马来酸酐制备聚合物多元醇稳定剂的方法,以及由此制备的聚合物多元醇稳定剂

    公开(公告)号:US20080287645A1

    公开(公告)日:2008-11-20

    申请号:US12000621

    申请日:2007-12-14

    IPC分类号: C08G63/78 C08G67/00

    摘要: Disclosed herein is a novel stabilizer for preparing a polymer polyol, which is used to prepare polyurethane foam having improved physical properties. The stabilizer is prepared by allowing maleic anhydride to react with a polyether polyol, having an OH functionality of 3-8 and a molecular weight of 3,000-15,000, and then adding ethylene oxide to the reaction solution. Because the molecular weight and functionality of the stabilizer are increased through aging and dimerization, the stabilizer has a high molecular weight of 5,000-30,000, a high OH functionality of 6-10 and a viscosity of 3,000-15,000 cps/25° C. A polymer polyol derived from the stabilizer has low viscosity compared to those of prior products and contributes to the improvement in the physical properties of the resulting polyurethane foam.

    摘要翻译: 本文公开了一种用于制备聚合物多元醇的新型稳定剂,其用于制备具有改进的物理性能的聚氨酯泡沫。 通过使马来酸酐与OH官能度为3-8,分子量为3,000-15,000的聚醚多元醇反应制备稳定剂,然后向反应溶液中加入环氧乙烷。 由于稳定剂的分子量和官能度通过老化和二聚而增加,稳定剂具有5,000-30,000的高分子量,6-10的高OH官能度和3,000-15,000cps / 25℃的粘度。 衍生自稳定剂的聚合物多元醇与现有产品相比具有低粘度,并且有助于所得聚氨酯泡沫体的物理性能的改善。

    Method for preparing polymer polyol stabilizer using maleic anhydride, and polymer polyol stabilizer prepared thereby
    2.
    发明授权
    Method for preparing polymer polyol stabilizer using maleic anhydride, and polymer polyol stabilizer prepared thereby 有权
    使用马来酸酐制备聚合物多元醇稳定剂的方法,以及由此制备的聚合物多元醇稳定剂

    公开(公告)号:US07960496B2

    公开(公告)日:2011-06-14

    申请号:US12000621

    申请日:2007-12-14

    摘要: Disclosed herein is a novel stabilizer for preparing a polymer polyol, which is used to prepare polyurethane foam having improved physical properties. The stabilizer is prepared by allowing maleic anhydride to react with a polyether polyol, having an OH functionality of 3-8 and a molecular weight of 3,000-15,000, and then adding ethylene oxide to the reaction solution. Because the molecular weight and functionality of the stabilizer are increased through aging and dimerization, the stabilizer has a high molecular weight of 5,000-30,000, a high OH functionality of 6-10 and a viscosity of 3,000-15,000 cps/25° C. A polymer polyol derived from the stabilizer has low viscosity compared to those of prior products and contributes to the improvement in the physical properties of the resulting polyurethane foam.

    摘要翻译: 本文公开了一种用于制备聚合物多元醇的新型稳定剂,其用于制备具有改进的物理性能的聚氨酯泡沫。 通过使马来酸酐与OH官能度为3-8,分子量为3,000-15,000的聚醚多元醇反应制备稳定剂,然后向反应溶液中加入环氧乙烷。 由于稳定剂的分子量和官能度通过老化和二聚而增加,稳定剂具有5,000-30,000的高分子量,6-10的高OH官能度和3,000-15,000cps / 25℃的粘度。 衍生自稳定剂的聚合物多元醇与现有产品相比具有低粘度,并且有助于所得聚氨酯泡沫体的物理性能的改善。